This change turns off fsync on the postgres container used for tests. This
reduces migration time significantly when initializing new satellite
databases.
The change also includes a new benchmark for satellite initialization in
testplanet.
$ benchstat old.txt new.txt name old time/op new time/op delta
Run_Satellite/Postgres-16 1.36s ± 0% 0.08s ± 0% ~ (p=1.000 n=1+1)
Change-Id: Ic954767133864770cf652b0dfdcd6b109a167b5f
Testplanet does not have a multinode instance, hence,
makes it difficult to run ui tests for the multinode dashboard.
Instead of using storj-sim for multinode ui tests,
it's better to use the same approach (testplanet) fir all UI tests.
This changes adds a multinode instance to testplanet.
Change-Id: I58aa8c4597e789275f9e7ea7059703c742903492
